Bowler Ratings


Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

Note: Ratings are only available to our premium members.

General Info

Name:Hard Drive
Reviewed:September 2013
Coverstock Specs
Name:S74 Pearl
Type:Reactive Pearl
Box Finish:neaT
Color:Midnight Blue / Steel
Core Specs
Int. Diff:0.023

For details on our standard test layouts, please click here.

The Hard Drive is the newest high performance ball in the 900 Global line. This ball is the first in the new line that will replace the Train series. The Hard Drive uses a brand new core shape for 900 Global. This new RAM core has a low RG and a high differential. The Hard Drive uses a pearl version of the S74 reactive coverstock. This core and cover combination gave us the best reaction on the medium test pattern with the heavy pattern not far behind.

Cranker was able to play around the middle arrow and had all the

900 Global Hard Drive Comparisons

Click below to see a comparison table of each pair of bowling balls shown:

To compare the 900 Global Hard Drive to any other bowling ball(s), please use our Bowling Ball Comparison tool.

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.